Open AccessCu‐doped CdS QDs for sensitisation in solar cell
Author(s) -
Ganguly Abhigyan,
Nath Siddhartha S.,
Choudhury Madhuchhanda
Publication year - 2018
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2017.0816
Subject(s) - quantum dot , materials science , doping , solar cell , chemical bath deposition , absorption spectroscopy , optoelectronics , ultraviolet , transmission electron microscopy , absorption (acoustics) , zinc , vinyl alcohol , nanotechnology , optics , metallurgy , band gap , physics , composite material , polymer
Copper (Cu)‐doped cadmium sulphide (CdS) quantum dots (QDs) sensitised zinc oxide photoelectrodes have been fabricated for a solar cell (SC). For the synthesis of QDs, simple chemical methods have been adapted and the QDs were prepared on poly‐vinyl alcohol capping agent. The influences of doping on structural properties of QDs have been studied using X‐ray diffraction analysis and transmission electron microscopy images. Ultraviolet–visible absorption spectroscopy reveals an enhanced optical absorption in doped QDs. The photovoltaic performance of the Cu‐doped CdS QDs was studied by measuring the current density–voltage ( J–V ) characteristics of the fabricated SC. An enhanced photo‐conversion efficiency was observed in doped CdS QDs compared with the undoped QDs sensitised SC.